30 Mar
2008
30 Mar
'08
3:02 p.m.
Hi all,
In WLCG combinations of RetentionPolicy and AccessLatency have _extra_ meaning that cannot be deduced from those attributes.
Such combinations are called Storage Classes:
Custodial-Nearline == T1D0 --> disk managed by system Custodial-Online == T1D1 --> disk managed by client Replica-Online == T0D1 --> disk managed by client
In the "TnDm" notation 'n' indicates the guaranteed number of copies on tape (or other high-quality media) and 'm' the guaranteed number of copies on disk. Cheers, Maarten